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Taco Casserole – Low Carb / Keto

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What do you want to taco ’bout today? How ’bout our low carb keto taco casserole! This is so easy to make that it’s a must for Taco Tuesday and any other day that needs a taco, which, let’s be honest, is every day. This keto mexican beef taco casserole is about to become your favorite!

taco casserole

Is the taco casserole keto friendly?

Yes! Our casserole is super simple with just a few ingredients that you may have on hand if you are living a keto or low carb lifestyle. In fact, if you are like us, you already have the cooked taco meat in the freezer.

taco casserole ingredients

Oh…and ground beef.

It starts a little something like this with some browned beef , canned tomatoes and enough taco seasoning to make your heat sensor happy.

beef tomato in pan

Is Cauliflower Rice keto?

Yep, but you’ll want to watch your macros. A head of cauliflower has about 29g of carbs. You can use as much as you want or as little in the casserole.

Next up – you add the green chilis and cauliflower rice. Mix it all together. All these ingredients together work perfect if you want a make ahead keto taco casserole.

add rice and chiles to beef

You can definitely taste test this now to make sure the flavors are what you want. Add some more of <insert what it needs> if so desired.

Do you have other Mexican keto recipes?

We use a 13 x 9 casserole dish. Start by adding the meat mixture to the bottom – enough to cover the bottom. Don’t worry if it isn’t a thick layer. You’ll be adding more yummies.

beef and tomatoes in casserole

Cover with about 2/3 of the bag of cheese – enough so it’s a decent covering. You want the cheese to melt when it’s baking and make the dish cheeeesssyyyy. I mean it’s a keto mexican casserole! It has to have the cheese – and cheese is one of the best foods to eat if you are on a low carb diet.

cheese casserole topping

Repeat the layers – the remainder of the meat mixture covered with the remainder of the cheese. Since it’s already cooked, the bake is intended to just melt the cheese – so 15-20 minutes max.

baked taco casserole beef cheese

Doesn’t it look yummy? Because it is. Cheesy taco yummy.

taco casserole beef cheese yummy

Serve it in a bowl garnished with sour cream and avocado if you want. I prefer greek yogurt to sour cream myself. And avocado all day long if you’re the keto type!

Or serve it plain. Like this. Also yum!

taco casserole beef cheese in bowl

I love that it’s a one dish dinner with the addition of the cauliflower. Since I discovered cauliflower rice in the bag, I use it for everything. While it can give some dishes a cauli taste, that’s not the case with this casserole. This is all taco!

Want a taco fat bomb? We’ve got that!

Dessert is next – try a keto frosty and your day is made!

bite of taco casserole beef cheese

Can’t make it now?

Pin it for Later!

taco casserole beef cheese pin
Taco Casserole - Low Carb / Keto

Taco Casserole - Low Carb / Keto

Prep Time: 20 minutes
Cook Time: 20 minutes
Total Time: 40 minutes


  • 1 1/2 lb ground beef
  • 1 14.5 oz can chopped tomatoes
  • 1 4 oz can diced green chiles
  • 2 cups cooked cauliflower rice
  • 3 Tbs taco seasoning
  • 1 8 oz bag taco cheese


  1. Cook the cauliflower rice (either bagged or fresh) and pat dry to remove excess moisture
  2. Cook beef on stovetop until brown
  3. Add tomatoes, cauliflower, taco seasoning and chiles and stir until well mixed
  4. In a 13 x 9 baking dish, layer enough of the beef mixture to cover the bottom - about half
  5. Top with 2/3 of the cheese and spread evenly
  6. Repeat with the rest of the beef and then top with the rest of the cheese
  7. Bake for 15-20 min at 350 degrees until cheese is melted
  8. Serve in a bowl alone or with sour cream and avocado
Nutrition Information
Yield 6 Serving Size 1 cup
Amount Per Serving Calories 522Total Fat 31gSaturated Fat 14gTrans Fat 1gUnsaturated Fat 13gCholesterol 137mgSodium 550mgCarbohydrates 17gFiber 3gSugar 5gProtein 42g

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